松辽盆地南部西斜坡高分辨率层序地层研究
Petroleum Geology & Oilfield Development in Daqing（2013）
Abstract
根据钻井、测井及地震资料,引入沉积转换面概念,应用以多级次基准面旋回为参照面的高分辨层序地层学理论与方法,对松辽盆地南部西斜坡前缘带的青山口组—姚家组地层进行了层序地层研究.共识别出4个长期基准面旋回、8个中期基准面旋回,建立了层序划分方案,在连井剖面的层序地层对比基础上建立了地层格架;认为青山口组底部层序为盆地快速水进时期,向上至青三上层序为水退时期,至姚家组层序为另一水进初始阶段;各旋回叠加样式随基准面升降呈现有规律变化,层序格架分布样式也对油气运聚具有显著影响.
MoreKey words
Songliao Basin,West Slope,depression/downwarped stage,high resolution,sequence strata,base level cycle
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